Ukukha
Ngokusho kokuhlushwa okuthile, izinga lokushisa kanye nesivinini, ama-asidi asetshenziselwa ukususa isikhumba se-iron oxide ngamakhemikhali, okubizwa ngokuthi i-pickling.
I-Phosphating:
Inqubo yokwenza i-phosphate enamathela endaweni yensimbi ngokusebenzisa ukusabela kwamakhemikhali kanye ne-electrochemical.Ifilimu yokuguqula i-phosphate ebizwa ngokuthi ifilimu ye-phosphating.
Inhloso: Ukuthuthukisa i-anti-corrosion kanye ne-anti-rust ye-surface yezinto.Ngesikhathi esifanayo, ifilimu ye-phosphate eyakhiwe njengesithwali sokugcoba sinokusabela okuhle nge-lubricant futhi inciphisa i-coefficient ye-surface friction yokucubungula okulandelayo kwezinto.Thuthukisa ukunamathela kopende futhi ulungiselele isinyathelo esilandelayo.
I-Saponification:
Ngemuva kokuthi i-workpiece i-phosphating, ungqimba lwefilimu ye-stearate ne-zinc phosphate esisombululo esicwiliswe kubhavu we-saponification kusabela ukwenza ungqimba lwe-zinc stearate saponification.Inhloso: Ukwakha isendlalelo se-saponification esine-adsorption enhle kakhulu kanye ne-lubricity ebusweni bento, ukuze kube lula ukuqhubeka kahle kobuchwepheshe bokucubungula obulandelayo.
Indlela yokugqwala nokugqwala iyindlela esetshenziswa kakhulu emkhakheni wezimboni.Inhloso yokususa ukugqwala nesikali se-oxide ifinyelelwa ngomphumela wokuhlubula ngomshini we-asidi ekuhlakazweni kwe-oxide nokugqwala ukuze kukhiqizwe igesi ye-hydrogen.Okuvame ukusetshenziswa kakhulu ekukhetheni i-hydrochloric acid, i-sulfuric acid, ne-phosphoric acid.I-nitric acid ayivamisile ukusetshenziswa ngoba ikhiqiza igesi ye-nitrogen dioxide enobuthi ngesikhathi sokuvuna.I-Hydrochloric acid pickling ifanele ukusetshenziswa emazingeni okushisa aphansi, akufanele idlule ku-45 ℃, kufanele futhi ingeze inani elifanele le-acid inhibitor.Ijubane lokukhetha le-sulfuric acid ekushiseni okuphansi lihamba kancane kakhulu, lilungele ukusetshenziswa emazingeni okushisa aphakathi nendawo, izinga lokushisa elingu-50 - 80 ℃, sebenzisa ukugxila kuka-10% - 25%.Inzuzo ye-phosphoric acid pickling ukuthi ngeke ikhiqize izinsalela ezibolayo, okuphephile, kodwa ubungozi be-phosphoric acid yizindleko eziphezulu, isivinini sokuqoqa kancane, ukugxila kokusetshenziswa okujwayelekile ngu-10% kuya ku-40%, futhi izinga lokushisa lokucubungula lingaba. izinga lokushisa elijwayelekile lifika ku-80 ℃.Enqubweni ye-pickling, ukusetshenziswa kwama-acids ahlanganisiwe kuyindlela ephumelela kakhulu, njenge-hydrochloric acid-sulfuric acid exutshwe acid, i-phosphoric acid-citric acid exutshwe.
Ulayini wokukhetha oklanywe i-Wux T-control uvalwe ngokugcwele futhi uyazenzakalela.Inqubo yokukhiqiza yenziwa ku-tank evaliwe futhi ihlukaniswe nezwe langaphandle;inkungu ye-asidi ekhiqizwayo ikhishwa umbhoshongo wenkungu ye-asidi ukuze ihlanzwe;inqubo yokukhiqiza ihlukanisiwe nempilo yoMthelela wesisebenzisi;ukulawula okuzenzakalelayo, ukusebenza kahle kokukhiqiza okuphezulu, okukhiphayo okukhulu, okulungele ikakhulukazi okukhiphayo okukhulu, ukukhiqizwa okuphakathi;ukulawulwa okuzenzakalelayo kwekhompyutha kwemingcele yenqubo, inqubo yokukhiqiza ezinzile;uma kuqhathaniswa nolayini wokukhiqiza we-pickling phosphating wangaphambilini, ukusebenza okuthuthuke kakhulu, kodwa futhi ngokwedlulele Umhlaba unciphisa ukungcoliswa kwemvelo.
Isikhathi sokuthumela: Nov-23-2022